/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 19:14:14,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 19:14:14,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 19:14:14,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 19:14:14,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 19:14:14,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 19:14:14,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 19:14:14,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 19:14:14,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 19:14:14,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 19:14:14,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 19:14:14,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 19:14:14,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 19:14:14,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 19:14:14,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 19:14:14,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 19:14:14,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 19:14:14,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 19:14:14,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 19:14:14,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 19:14:14,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 19:14:14,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 19:14:14,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 19:14:14,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 19:14:14,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 19:14:14,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 19:14:14,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 19:14:14,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 19:14:14,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 19:14:14,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 19:14:14,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 19:14:14,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 19:14:14,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 19:14:14,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 19:14:14,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 19:14:14,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 19:14:14,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 19:14:14,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 19:14:14,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 19:14:14,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 19:14:14,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 19:14:14,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-06-10 19:14:14,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 19:14:14,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 19:14:14,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 19:14:14,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 19:14:14,136 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 19:14:14,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 19:14:14,136 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 19:14:14,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 19:14:14,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 19:14:14,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 19:14:14,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 19:14:14,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 19:14:14,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 19:14:14,138 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 19:14:14,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 19:14:14,138 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 19:14:14,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 19:14:14,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 19:14:14,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 19:14:14,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 19:14:14,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 19:14:14,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 19:14:14,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 19:14:14,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 19:14:14,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 19:14:14,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 19:14:14,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 19:14:14,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 19:14:14,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 19:14:14,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 19:14:14,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 19:14:14,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 19:14:14,412 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 19:14:14,412 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 19:14:14,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2021-06-10 19:14:14,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4cbe7d1/4bc3b4a338034b1186689e6724b3e9ac/FLAGbfc6214b9 [2021-06-10 19:14:14,839 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 19:14:14,841 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2021-06-10 19:14:14,855 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4cbe7d1/4bc3b4a338034b1186689e6724b3e9ac/FLAGbfc6214b9 [2021-06-10 19:14:15,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4cbe7d1/4bc3b4a338034b1186689e6724b3e9ac [2021-06-10 19:14:15,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 19:14:15,208 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 19:14:15,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 19:14:15,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 19:14:15,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 19:14:15,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f25f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15, skipping insertion in model container [2021-06-10 19:14:15,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 19:14:15,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 19:14:15,456 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2021-06-10 19:14:15,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 19:14:15,470 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 19:14:15,503 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2021-06-10 19:14:15,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 19:14:15,561 INFO L208 MainTranslator]: Completed translation [2021-06-10 19:14:15,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15 WrapperNode [2021-06-10 19:14:15,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 19:14:15,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 19:14:15,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 19:14:15,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 19:14:15,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 19:14:15,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 19:14:15,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 19:14:15,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 19:14:15,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (1/1) ... [2021-06-10 19:14:15,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 19:14:15,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 19:14:15,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 19:14:15,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 19:14:15,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 19:14:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-10 19:14:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-10 19:14:15,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-10 19:14:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-10 19:14:15,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-10 19:14:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-10 19:14:15,640 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-10 19:14:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 19:14:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-10 19:14:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 19:14:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 19:14:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 19:14:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 19:14:15,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 19:14:15,641 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 19:14:15,944 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 19:14:15,944 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-10 19:14:15,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 07:14:15 BoogieIcfgContainer [2021-06-10 19:14:15,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 19:14:15,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 19:14:15,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 19:14:15,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 19:14:15,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 07:14:15" (1/3) ... [2021-06-10 19:14:15,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42889c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 07:14:15, skipping insertion in model container [2021-06-10 19:14:15,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:14:15" (2/3) ... [2021-06-10 19:14:15,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42889c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 07:14:15, skipping insertion in model container [2021-06-10 19:14:15,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 07:14:15" (3/3) ... [2021-06-10 19:14:15,951 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2021-06-10 19:14:15,955 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 19:14:15,958 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 19:14:15,959 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 19:14:15,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,984 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,984 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,985 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,985 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,988 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,988 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,988 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,988 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,989 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,989 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,989 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,989 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,989 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,989 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,989 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,989 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,990 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,990 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,990 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,990 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,991 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,991 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,991 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,992 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,992 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,992 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,992 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,992 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,992 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,992 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,993 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,993 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,996 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,996 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,996 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,996 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,998 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,998 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,998 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,998 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,998 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:15,999 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,002 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,003 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,003 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,003 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,003 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,005 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,005 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,005 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,005 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,005 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:14:16,015 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-06-10 19:14:16,028 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-10 19:14:16,042 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 19:14:16,042 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 19:14:16,042 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 19:14:16,042 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 19:14:16,042 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 19:14:16,043 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 19:14:16,043 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 19:14:16,043 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 19:14:16,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 208 flow [2021-06-10 19:14:16,076 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2021-06-10 19:14:16,076 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-06-10 19:14:16,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 91 events. 6/91 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 133 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2021-06-10 19:14:16,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 83 transitions, 208 flow [2021-06-10 19:14:16,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 65 transitions, 151 flow [2021-06-10 19:14:16,082 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 19:14:16,089 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 65 transitions, 151 flow [2021-06-10 19:14:16,092 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 65 transitions, 151 flow [2021-06-10 19:14:16,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 65 transitions, 151 flow [2021-06-10 19:14:16,103 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2021-06-10 19:14:16,103 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-10 19:14:16,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 67 events. 2/67 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 43. Up to 3 conditions per place. [2021-06-10 19:14:16,105 INFO L151 LiptonReduction]: Number of co-enabled transitions 1008 [2021-06-10 19:14:16,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:16,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:14:16,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:14:16,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 19:14:16,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 19:14:16,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:16,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:14:16,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:14:16,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:16,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:14:16,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:14:16,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:16,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:16,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:17,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 19:14:17,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 19:14:17,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:17,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:17,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:14:17,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 19:14:17,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:17,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:17,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:14:17,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:14:17,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:17,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:14:17,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:14:17,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:17,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-10 19:14:17,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-10 19:14:17,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:17,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:17,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:14:17,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-10 19:14:18,133 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-06-10 19:14:18,282 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-06-10 19:14:18,415 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-06-10 19:14:18,534 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-06-10 19:14:18,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:18,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:18,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:18,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:18,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:18,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 19:14:18,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 19:14:18,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:18,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:18,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:18,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:18,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-10 19:14:18,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 19:14:18,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:18,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:18,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 19:14:18,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-10 19:14:18,821 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 109 [2021-06-10 19:14:18,952 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-06-10 19:14:19,251 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 109 [2021-06-10 19:14:19,382 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-06-10 19:14:19,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 19:14:19,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-10 19:14:19,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-10 19:14:19,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-10 19:14:19,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-10 19:14:19,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-10 19:14:19,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-06-10 19:14:19,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-06-10 19:14:19,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-06-10 19:14:19,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-06-10 19:14:19,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-06-10 19:14:19,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-06-10 19:14:19,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:14:19,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-06-10 19:14:19,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-06-10 19:14:19,462 INFO L163 LiptonReduction]: Checked pairs total: 2337 [2021-06-10 19:14:19,462 INFO L165 LiptonReduction]: Total number of compositions: 44 [2021-06-10 19:14:19,463 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3382 [2021-06-10 19:14:19,469 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-06-10 19:14:19,469 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-10 19:14:19,469 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:14:19,470 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:14:19,470 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:14:19,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:14:19,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1183454168, now seen corresponding path program 1 times [2021-06-10 19:14:19,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:14:19,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394811379] [2021-06-10 19:14:19,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:14:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:14:19,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:14:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:14:19,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394811379] [2021-06-10 19:14:19,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:14:19,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-10 19:14:19,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864559146] [2021-06-10 19:14:19,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 19:14:19,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:14:19,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 19:14:19,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 19:14:19,610 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2021-06-10 19:14:19,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:14:19,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2021-06-10 19:14:19,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:14:19,644 INFO L129 PetriNetUnfolder]: 15/70 cut-off events. [2021-06-10 19:14:19,644 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-06-10 19:14:19,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 70 events. 15/70 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 256 event pairs, 3 based on Foata normal form. 4/65 useless extension candidates. Maximal degree in co-relation 103. Up to 24 conditions per place. [2021-06-10 19:14:19,647 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 6 selfloop transitions, 3 changer transitions 2/30 dead transitions. [2021-06-10 19:14:19,647 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 101 flow [2021-06-10 19:14:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 19:14:19,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 19:14:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2021-06-10 19:14:19,655 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8530183727034121 [2021-06-10 19:14:19,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 325 transitions. [2021-06-10 19:14:19,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 325 transitions. [2021-06-10 19:14:19,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:14:19,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 325 transitions. [2021-06-10 19:14:19,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,663 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,664 INFO L185 Difference]: Start difference. First operand has 34 places, 27 transitions, 75 flow. Second operand 3 states and 325 transitions. [2021-06-10 19:14:19,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 101 flow [2021-06-10 19:14:19,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 88 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-06-10 19:14:19,667 INFO L241 Difference]: Finished difference. Result has 32 places, 27 transitions, 77 flow [2021-06-10 19:14:19,668 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=32, PETRI_TRANSITIONS=27} [2021-06-10 19:14:19,669 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2021-06-10 19:14:19,669 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 77 flow [2021-06-10 19:14:19,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,669 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:14:19,669 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:14:19,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 19:14:19,669 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:14:19,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:14:19,670 INFO L82 PathProgramCache]: Analyzing trace with hash -866885341, now seen corresponding path program 1 times [2021-06-10 19:14:19,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:14:19,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066607503] [2021-06-10 19:14:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:14:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:14:19,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:19,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 19:14:19,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:14:19,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:14:19,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066607503] [2021-06-10 19:14:19,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:14:19,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 19:14:19,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677049033] [2021-06-10 19:14:19,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 19:14:19,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:14:19,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 19:14:19,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 19:14:19,712 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 127 [2021-06-10 19:14:19,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:14:19,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 127 [2021-06-10 19:14:19,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:14:19,729 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-06-10 19:14:19,729 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 19:14:19,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 123 event pairs, 0 based on Foata normal form. 9/51 useless extension candidates. Maximal degree in co-relation 58. Up to 8 conditions per place. [2021-06-10 19:14:19,730 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 1 selfloop transitions, 5 changer transitions 0/27 dead transitions. [2021-06-10 19:14:19,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 27 transitions, 89 flow [2021-06-10 19:14:19,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 19:14:19,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 19:14:19,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2021-06-10 19:14:19,733 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7086614173228346 [2021-06-10 19:14:19,733 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2021-06-10 19:14:19,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2021-06-10 19:14:19,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:14:19,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2021-06-10 19:14:19,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,735 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,735 INFO L185 Difference]: Start difference. First operand has 32 places, 27 transitions, 77 flow. Second operand 3 states and 270 transitions. [2021-06-10 19:14:19,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 27 transitions, 89 flow [2021-06-10 19:14:19,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 19:14:19,736 INFO L241 Difference]: Finished difference. Result has 32 places, 27 transitions, 84 flow [2021-06-10 19:14:19,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=32, PETRI_TRANSITIONS=27} [2021-06-10 19:14:19,736 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2021-06-10 19:14:19,736 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 84 flow [2021-06-10 19:14:19,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:14:19,737 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:14:19,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 19:14:19,737 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:14:19,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:14:19,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1819204631, now seen corresponding path program 1 times [2021-06-10 19:14:19,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:14:19,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138376398] [2021-06-10 19:14:19,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:14:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:14:19,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:14:19,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:14:19,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:14:19,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138376398] [2021-06-10 19:14:19,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:14:19,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 19:14:19,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474805098] [2021-06-10 19:14:19,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 19:14:19,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:14:19,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 19:14:19,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-10 19:14:19,807 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2021-06-10 19:14:19,808 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,808 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:14:19,808 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2021-06-10 19:14:19,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:14:19,822 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2021-06-10 19:14:19,822 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-06-10 19:14:19,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 42 events. 2/42 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 111 event pairs, 0 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 66. Up to 8 conditions per place. [2021-06-10 19:14:19,823 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 4 selfloop transitions, 5 changer transitions 3/30 dead transitions. [2021-06-10 19:14:19,823 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 112 flow [2021-06-10 19:14:19,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 19:14:19,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 19:14:19,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 428 transitions. [2021-06-10 19:14:19,825 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.84251968503937 [2021-06-10 19:14:19,825 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 428 transitions. [2021-06-10 19:14:19,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 428 transitions. [2021-06-10 19:14:19,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:14:19,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 428 transitions. [2021-06-10 19:14:19,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,828 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,828 INFO L185 Difference]: Start difference. First operand has 32 places, 27 transitions, 84 flow. Second operand 4 states and 428 transitions. [2021-06-10 19:14:19,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 112 flow [2021-06-10 19:14:19,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 19:14:19,829 INFO L241 Difference]: Finished difference. Result has 35 places, 26 transitions, 92 flow [2021-06-10 19:14:19,829 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2021-06-10 19:14:19,829 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2021-06-10 19:14:19,829 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 92 flow [2021-06-10 19:14:19,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:14:19,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:14:19,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 19:14:19,829 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:14:19,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:14:19,830 INFO L82 PathProgramCache]: Analyzing trace with hash -525691692, now seen corresponding path program 1 times [2021-06-10 19:14:19,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:14:19,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409907759] [2021-06-10 19:14:19,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:14:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:14:19,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:14:19,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:14:19,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:14:19,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:14:19,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:14:19,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409907759] [2021-06-10 19:14:19,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:14:19,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 19:14:19,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977416079] [2021-06-10 19:14:19,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 19:14:19,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:14:19,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 19:14:19,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 19:14:19,877 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 127 [2021-06-10 19:14:19,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:14:19,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 127 [2021-06-10 19:14:19,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:14:19,899 INFO L129 PetriNetUnfolder]: 2/38 cut-off events. [2021-06-10 19:14:19,899 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-06-10 19:14:19,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 38 events. 2/38 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 57. Up to 7 conditions per place. [2021-06-10 19:14:19,899 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 5 selfloop transitions, 5 changer transitions 2/28 dead transitions. [2021-06-10 19:14:19,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 121 flow [2021-06-10 19:14:19,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 19:14:19,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 19:14:19,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 522 transitions. [2021-06-10 19:14:19,901 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8220472440944881 [2021-06-10 19:14:19,901 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 522 transitions. [2021-06-10 19:14:19,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 522 transitions. [2021-06-10 19:14:19,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:14:19,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 522 transitions. [2021-06-10 19:14:19,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,904 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,904 INFO L185 Difference]: Start difference. First operand has 35 places, 26 transitions, 92 flow. Second operand 5 states and 522 transitions. [2021-06-10 19:14:19,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 121 flow [2021-06-10 19:14:19,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 116 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-10 19:14:19,905 INFO L241 Difference]: Finished difference. Result has 39 places, 26 transitions, 106 flow [2021-06-10 19:14:19,905 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2021-06-10 19:14:19,905 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 5 predicate places. [2021-06-10 19:14:19,905 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 106 flow [2021-06-10 19:14:19,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 19:14:19,906 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:14:19,906 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:14:19,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 19:14:19,906 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:14:19,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:14:19,906 INFO L82 PathProgramCache]: Analyzing trace with hash -46034405, now seen corresponding path program 1 times [2021-06-10 19:14:19,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:14:19,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940950842] [2021-06-10 19:14:19,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:14:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 19:14:19,920 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 19:14:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 19:14:19,930 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 19:14:19,942 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 19:14:19,942 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 19:14:19,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 19:14:19,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 07:14:19 BasicIcfg [2021-06-10 19:14:19,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 19:14:19,962 INFO L168 Benchmark]: Toolchain (without parser) took 4753.81 ms. Allocated memory was 358.6 MB in the beginning and 432.0 MB in the end (delta: 73.4 MB). Free memory was 321.3 MB in the beginning and 318.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 77.3 MB. Max. memory is 16.0 GB. [2021-06-10 19:14:19,962 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 358.6 MB. Free memory was 339.4 MB in the beginning and 339.2 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 19:14:19,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.23 ms. Allocated memory is still 358.6 MB. Free memory was 321.2 MB in the beginning and 321.6 MB in the end (delta: -410.6 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-10 19:14:19,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.38 ms. Allocated memory is still 358.6 MB. Free memory was 321.6 MB in the beginning and 319.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 19:14:19,963 INFO L168 Benchmark]: Boogie Preprocessor took 12.99 ms. Allocated memory is still 358.6 MB. Free memory was 319.5 MB in the beginning and 318.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 19:14:19,963 INFO L168 Benchmark]: RCFGBuilder took 346.22 ms. Allocated memory is still 358.6 MB. Free memory was 318.4 MB in the beginning and 293.5 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-10 19:14:19,964 INFO L168 Benchmark]: TraceAbstraction took 4015.05 ms. Allocated memory was 358.6 MB in the beginning and 432.0 MB in the end (delta: 73.4 MB). Free memory was 293.3 MB in the beginning and 318.6 MB in the end (delta: -25.3 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.0 GB. [2021-06-10 19:14:19,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 358.6 MB. Free memory was 339.4 MB in the beginning and 339.2 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 351.23 ms. Allocated memory is still 358.6 MB. Free memory was 321.2 MB in the beginning and 321.6 MB in the end (delta: -410.6 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.38 ms. Allocated memory is still 358.6 MB. Free memory was 321.6 MB in the beginning and 319.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.99 ms. Allocated memory is still 358.6 MB. Free memory was 319.5 MB in the beginning and 318.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 346.22 ms. Allocated memory is still 358.6 MB. Free memory was 318.4 MB in the beginning and 293.5 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4015.05 ms. Allocated memory was 358.6 MB in the beginning and 432.0 MB in the end (delta: 73.4 MB). Free memory was 293.3 MB in the beginning and 318.6 MB in the end (delta: -25.3 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3370.1ms, 72 PlacesBefore, 34 PlacesAfterwards, 65 TransitionsBefore, 27 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 2337 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1120, positive: 1017, positive conditional: 0, positive unconditional: 1017, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 638, positive: 611, positive conditional: 0, positive unconditional: 611, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 638, positive: 611, positive conditional: 0, positive unconditional: 611, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 638, positive: 592, positive conditional: 0, positive unconditional: 592, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1120, positive: 406, positive conditional: 0, positive unconditional: 406, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 638, unknown conditional: 0, unknown unconditional: 638] , Statistics on independence cache: Total cache size (in pairs): 948, Positive cache size: 921, Positive conditional cache size: 0, Positive unconditional cache size: 921, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={6:0}] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={6:0}] [L707] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={6:0}] [L709] 1 return 0; [L714] 2 data+=2 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={6:0}] [L716] 2 return 0; [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={6:0}] [L721] COND TRUE 3 data >= 3 [L722] 3 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 3903.3ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 139.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3423.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 15 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 44 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.6ms SsaConstructionTime, 71.8ms SatisfiabilityAnalysisTime, 146.6ms InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...